Rust: How to Fix wit_bindgen's 'package not found' Error for Same-Directory WIT Files?

When the wit_bindgen::generate! macro runs, it fails to find the package local:val defined in val.wit and reports an error like "package 'local:val' not found" (or with a version, e.g., local:val@1.0.0).

Relevant Code Structure:

### assets/wit/val.wit

(defines common types and declares the package local:val)

```wit
package local:val@1.0.0;
interface types {

variant val {
null,
blob(blob),
boolen(bool),
str(string),
float(f64),
int(s64),
error(string),
}
}

// 可能还有 world 定义，但接口是关键
world val {
export types;
}
```

### assets/wit/acme-plugins.wit
(uses types from val.wit via use local:val.{...})
```
// filepath: assets/wit/acme-plugins.wit
package acme:plugins@1.0.0;

interface host {
log: func(message: string);
}

interface prettify-plugin {
use local:val/types@1.0.0.{val};
prettify: func(content: string) -> val;
}

world prettify {
import host;
export prettify-plugin;
}
```

### crates/plugin/src/bindings.rs
(calls wit_bindgen::generate!)

```rust
use crate::val::exports::local::val;

wit_bindgen::generate!({
path: "../../assets/wit/acme-plugins.wit", // Points to the main WIT file
default_bindings_module: "crate::bindings",
pub_export_macro: true,
// I tried adding 'with' or 'dependencies', but neither seems correct or recognized
// with: {
// "local:val/types@1.0.0": crate::val::exports::local::val::types // Appears to map already generated types rather than help with discovery
// }
});
```

### error message

```
package 'local:val@1.0.0' not found. known packages:
acme:plugins@1.0.0
--> \\?\G:\Aduit_Project\Rust_Test_Demo\rust-wasm-plugins-examples\assets\wit\acme-plugins.wit:20:9
|
20 | use local:val/types@1.0.0.{val};
| ^--------rustc[Click for full compiler diagnostic](rust-analyzer-diagnostics-view:/diagnostic%20message%20%5B0%5D?0#file%3A%2F%2F%2Fg%253A%2FAduit_Project%2FRust_Test_Demo%2Frust-wasm-plugins-examples%2Fcrates%2Fplugin%2Fsrc%2Fbindings.rs)
```

### Expected Behavior:
I expect wit_bindgen::generate! to automatically resolve dependencies like local:val by searching the directory of the main WIT file (acme-plugins.wit, located at ../../assets/wit/), as long as val.wit exists in the same directory and properly declares its package.

### Questions:

Should wit_bindgen::generate! automatically handle WIT dependencies in the same directory?

If yes, what configuration or file structure might I be missing?

If not, how should I configure wit_bindgen::generate! or restructure the project to ensure it finds and uses val.wit?